Compensating hinge for car window structures



J. SCHUNK June 13, 1939.

COMPENSATING HINGE FOR CAR WINDOW STRUCTURES Filed May 18, 1937 INVENTOR M 5 W0 .1 H A F m U Patented June 13, 1939" UNITED STATES PATENT OFFICE COMPENSATING HINGE FOR GAR WINDOW STRUCTURES Joseph Schunk, Newark, N, J., assignor'to The National Lock Washer Company,

Newark,

2 Claims.

The present invention relates to a compensating hinge for car window structure, particularly car windows of railway passenger cars, busses, or the like, of the air-conditioned type, where the windows are in the form of double sashes to provide a sealed insulating space between them. The compensating hinge according to the invention is intended especially for use in connection with a window structure such as disclosed in my copending patent application for Car window structure, Ser. No. 143,317, filed May 18, 1937, and in which one window sash is fixed and the other is hinged thereto, and the glass panes are held in place by removable sealing strips in addition to having sealing engagement with the glass, re-

siliently engaging each other, so as to provide an air tight space between the two sashes.

It is an object of the invention to provide a compensating hinge for the hinged sash by means of which the sealing strips will at all times be maintained in tight engagement with each other and will be prevented from mis-alignment or mismatching, such mis-alignment and mis-matching usually resulting from the ordinary type of hinges without compensating means.

Another object is to provide a hinge structure of simple construction, which may be readily installed, and will attach to the ordinary type of hinge without change simply by screwing one leaf of the hinge to the compensating means.

With the above and other objects in view, an embodiment of the invention is shown in the accompanying drawing, and this embodiment will be hereinafter more fully described with reference thereto, and the invention will be finally pointed out in the claims.

In the drawing:

Fig. 1 is a fragmentary inside elevation of a window structure showing the compensating hinge according to the exemplary illustrated embodiment of the invention.

Fig. 2 is a vertical sectional view, taken along the line 22 of Fig. 1.

Fig. 3 is a horizontal sectional view, taken along the line 33 of Fig. 1.

Fig. 4 is a fragmentary view similar to Fig. 3, and showing a modified form of the invention.

Fig. 5 is an end elevation of the slidable compensating supporting member of the hinge.

Fig. 6 is a side elevation thereof.

Similar reference characters indicate corresponding parts throughout the several figures of the drawing.

Referring to the drawing the window structure in which the invention is incorporated comprises an outer panel 10 having a window opening I I therein of rectangular form, and to the inner side of this panel there is secured a rectangular frame l2 formed of channel iron, only one of the uprights of this frame being illustrated. 5

At suitable intervals the channel frame member is provided with window sash mounting blocks I3, which are of rectangular form and welded or otherwise suitably secured in place, and to these blocks l3 the stationary sash frame member [4 is rigidly secured by means of screws l 5, this frame being of rectangular form and being preferably of the same cross-sectional shape along both the upright portions and the horizontal portions. The frame I4 is of S-like formation in cross-section, and is provided at its mounting portion with an inwardly projecting flange l6 upon which the hinged sash frame is adapted to be mounted, as will presently more fully appear.

The outer side of the glass receiving portion of 20 the frame I4 is engaged with a resilient sealing strip I! which is compressed between the panel l0 and the sash by tightening of the securing screws IS. A shoulder I8 is provided upon the intermediate portion of the sash frame l4, and is 25 adapted to be engaged as a fulcrum by the end of the glass retaining member l9, which is removably secured in place by means of screws 20 engaged in an inwardly projecting rib portion 2! formed upon the inner surface of the glass re- 0 ceiving portion of the sash frame. Upon the end of this retaining member I9 there is mounted a sealing strip 22 which through tightening of the screw 20 presses the glass 23 into the glass receiving corner recess 24 of a resilient strip 25 secured in the sash frame.

The hinged sash frame l l is identical with the fixed sash frame l l', except for omission of the portion outwardly of the shoulder l8 by means of which the fixed sash is secured to 40 the window structure. The corresponding parts of the hinged sash are therefore given the same reference characters. In the assembled relation the hinged sash is reversely disposed with respect to the fixed sash, so that the glazing strips 45 22-22 of the fixed hinged sash-es contact each other. The hinged sash is mounted upon the flange l6 by means of hinges 26, one leaf of which is riveted to the sash frame member M by means of rivets 21, and the other leaf of which is secured to the compensating mounting accord? ing to the present invention.

This mounting comprises a block'member 28 of rectangular form having formed upon one side three cylindrical bosses 29, which engage 55 horizontally disposed slots 30 formed in the flange [6, these bosses having threaded holes 3| in which the attaching screws 32 of the hinge leaf are secured, a spacing plate 33 which covers the slots and provides sliding bearing engagement with the flange l6 being secured between the bosses and the hinge leaf. The block is provided in its front face with a pair of cylindrical pockets. 34, extending parallel to the slots 30, and in each of these pockets there is engaged a helical spring 35 which bears upon at one en'd the inner end of the pocket, and at its other end upon a yoke member 36, having attaching ears 3'L-37 at its upper and lower ends by which it is secured to the sash frame member l4 by means of screws 3838.

It will be seen that these springs normally press the hinge inwardly and thus press the hinge sash tightly against the stationary sash, thus aligning and maintaining the tight engagement of the sealing strips 22 of the fixed and hinged sashes. In the event that there is any irregularity when the hinge sash is moved from open to closed position, this irregularity will be compensated for by the action of the hinge.

In Fig. 4- I have illustrated a modification in which the yoke member 36 is dispensed with, and in its place there is provided a right angular extension 39 integrally formed upon the end of the flange l6, upon which the outer ends of the springs 35 bear.

I have illustrated and described a preferred and satisfactory embodiment of the invention,

but it will be understood that changes may be made therein, within the spirit and scope thereof, as defined in the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

In a hinging structure comprising a hinged part and a fixed part, compensating hinge mounting means comprising a flange arranged to project outwardly from said fixed part and said flange having laterally extending slots, a

spring pressed sliding block member disposed at one side of said flange and having projections extending through said slots, and a two-leaf hinge having a leaf secured upon said projections and a leaf adapted to be secured to said hinged part.

2. In a hinging structure comprising a hinged part and a fixed part, compensating hinge mounting means comprising a flange arranged to project'outwardly from said fixed part and said flange having laterally extending slots, an abutment wall at one side of said flange outwardly spaced from said fixed part, a sliding block member disposed at one side of said flange and having projections extending through said slots, a. two-leaf hinge having a leaf secured upon said projections and a leaf adapted to be secured to said hinged part, and spring means between said block member and said abutment wall normally acting to press said block member and said hinge toward said fixed part.

JOSEPH SCHUNK. 

